25715672502 has 16 divisors (see below), whose sum is σ = 55387602480. Its totient is φ = 7912514592.

The previous prime is 25715672497. The next prime is 25715672503. The reversal of 25715672502 is 20527651752.

It is a super-2 number, since 2×25715672502² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715672503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164843977 + ... + 164844132.

It is an arithmetic number, because the mean of its divisors is an integer number (3461725155).

Almost surely, 2^25715672502 is an apocalyptic number.

25715672502 is an abundant number, since it is smaller than the sum of its proper divisors (29671929978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25715672502 is a wasteful number, since it uses less digits than its factorization.

25715672502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329688127.

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 25715672502 in words is "twenty-five billion, seven hundred fifteen million, six hundred seventy-two thousand, five hundred two".